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post #1 of 11 (permalink) Old 09-14-2011, 03:38 PM Thread Starter
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overheating ignition coil

When I was charging the battery on my '63 Galaxie I noticed the coil was very hot, so I disconnected the battery cable and one of the wires on the coil and it finally cooled off. What would cause the coil get this hot?
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post #2 of 11 (permalink) Old 09-14-2011, 04:29 PM
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Re: overheating ignition coil

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Originally Posted by al's gal View Post
When I was charging the battery on my '63 Galaxie I noticed the coil was very hot, so I disconnected the battery cable and one of the wires on the coil and it finally cooled off. What would cause the coil get this hot?
Did you have ignition on and do you have points in the distributor?

Tracy Blackford: Anaheim Hills, Ca
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post #3 of 11 (permalink) Old 09-14-2011, 04:48 PM
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Re: overheating ignition coil

Do you have a ballast resistor too ?
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post #4 of 11 (permalink) Old 09-15-2011, 08:05 AM
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Re: overheating ignition coil

cure for old steel jacket coils getting hot ... don't start the engine. if you didnt have the motor running and tried to start with a low battery... soliniod could be stuck on and feeding full 12v to coil .

Last edited by DanH; 09-15-2011 at 08:11 AM.
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post #5 of 11 (permalink) Old 09-15-2011, 08:39 AM
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Re: overheating ignition coil

With the ignition key being left on...

THAT will heat up the coil.

The solenoid thing... The charger would have tried turning the starter again when hooked up... But it IS possible if the brown wire to the right terminal on the solenoid is hooked up and the solenoid was stuck on....
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post #6 of 11 (permalink) Old 09-15-2011, 09:04 AM
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Re: overheating ignition coil

Yep, ignition left in the "ON" position and not "ACC" will power the coil. Without dumping that current into the spark plugs it will get hot.

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post #7 of 11 (permalink) Old 09-15-2011, 02:21 PM
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Re: overheating ignition coil

If your key was not in RUN, you can have a switch failure, alternator/regulator issue, or wiring snafu to get back-feed to the coil.

David

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post #8 of 11 (permalink) Old 09-15-2011, 07:07 PM
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Re: overheating ignition coil

Who are these people that ask a Q then take off for the great white north? I mean Canadia... LOL
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post #9 of 11 (permalink) Old 09-16-2011, 09:11 AM
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Re: overheating ignition coil

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Originally Posted by PSIG View Post
If your key was not in RUN, you can have a switch failure, alternator/regulator issue, or wiring snafu to get back-feed to the coil.

David
switch failure , yes . alt/reg. by themself ;no , either/both would need another item to also fail
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post #10 of 11 (permalink) Old 09-16-2011, 01:25 PM
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Re: overheating ignition coil

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Originally Posted by FEandGoingBroke View Post
Who are these people that ask a Q then take off for the great white north? I mean Canadia... LOL
ALsgal she might be busy cooling of Al's hot rod .

FE, she (hope it's a she)is'nt a registered user . thought to post , must ne sign in .

Last edited by DanH; 09-16-2011 at 01:27 PM.
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post #11 of 11 (permalink) Old 09-16-2011, 04:18 PM
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Re: overheating ignition coil

we got more spam this week than my end of the world sister's dry goods cabinet...
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